The buildup of pressure caused by adding too much coolant to a car can cause the rupturing of hoses, internal pipes and even the radiator. When coolant is added to a car, it is cold, however, while the engine is running, the liquid starts to expand, causing a buildup of pressure. If the radiator is too full, this buildup of pressure is often too great for the internal workings of the car.Know More
The excess pressure caused by adding too much coolant to a car usually affects the hoses first. This pressure causes the hoses to leak. It is recommended that car owners keep extra coolant in their cars at all times. This is especially important if the driver believes that the radiator is even slightly overfilled.
The pressure that builds up in a radiator is extremely strong. That is why car operators must never remove the radiator cap under the hood of a car after it has been running. The pressure in the system causes the cap to shoot off and the coolant to boil over. Usually, coolant is only added to a car in the overflow tank. This is a part of the system that is not pressured.Learn more about Car Parts & Maintenance
A "low coolant" warning on a vehicle usually means that the vehicle is low on the cooling fluid inside the systems that prevent overheating of the engine. The coolant level can be verified by checking the coolant backup tank under the hood once the engine is cool.Full Answer >
To add coolant to a car, open the hood, and remove the cap on the white plastic tank that is next to the radiator. Add a 1:1 mixture of coolant and water up to the full mark, and replace the cap.Full Answer >
Coolant leaks and engine overheating are usually caused by a failing water pump. Automotive water pumps are designed to leak coolant through weep ports as a warning that they are failing. Aside from overheating, a distinctive grinding or whining noise caused by a bad bearing is also a symptom of a bad pump.Full Answer >
In most cases, a vehicle's coolant should be changed roughly every 24,000 to 36,000 miles. A driver may want to change his coolant more if he often drives in hot temperatures.Full Answer >